mirror of
https://github.com/troglobit/finit.git
synced 2026-10-09 16:50:59 +07:00
Joachim Wiberg
912a281ee2
This patch adds service readiness notification to support daemons employing systemd and s6 notification. Complementing the native Finit readiness support using PID files that exist already. The two have slightly different ways of implementing readiness: - https://www.freedesktop.org/software/systemd/man/sd_notify.html - https://skarnet.org/software/s6/notifywhenup.html Finit now provides both a NOTIFY_SOCKET environemnt variable, for systemd, and a way to start s6 daemons with a descriptor argument. For details on the syntax, see the `service` documentation. Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
138 lines
4.4 KiB
C
138 lines
4.4 KiB
C
/* Finit - Fast /sbin/init replacement w/ I/O, hook & service plugins
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*
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* Copyright (c) 2008-2010 Claudio Matsuoka <cmatsuoka@gmail.com>
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* Copyright (c) 2008-2022 Joachim Wiberg <troglobit@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef FINIT_H_
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#define FINIT_H_
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#include <errno.h>
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#include <fcntl.h>
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#include <paths.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sysexits.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#ifdef _LIBITE_LITE
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# include <libite/lite.h>
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#else
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# include <lite/lite.h>
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#endif
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#include <uev/uev.h>
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/* just in case */
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#ifndef _PATH_STDPATH
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#define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
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#endif
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#ifndef _PATH_VARRUN
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#define _PATH_VARRUN "/var/run/"
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#endif
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#ifndef FINIT_CGPATH
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#define FINIT_CGPATH "/sys/fs/cgroup"
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#endif
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/* To use these, include config.h, or define FINIT_LIBPATH_ */
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#define _PATH_LOGIT FINIT_LIBPATH_ "/logit"
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#define _PATH_SULOGIN FINIT_LIBPATH_ "/sulogin"
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#define _PATH_GETTY FINIT_LIBPATH_ "/getty"
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#define CMD_SIZE 256
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#define LINE_SIZE 1024
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#define BUF_SIZE 4096
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/* We extend the INIT_CMD_ range for the new initctl tool. */
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#define INIT_SOCKET _PATH_VARRUN "finit/socket"
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#define INIT_MAGIC 0x03091969
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#define INIT_CMD_START 0
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#define INIT_CMD_RUNLVL 1
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#define INIT_CMD_POWERFAIL 2
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#define INIT_CMD_POWERFAILNOW 3
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#define INIT_CMD_POWEROK 4
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#define INIT_CMD_BSD 5
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#define INIT_CMD_SETENV 6
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#define INIT_CMD_UNSETENV 7
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/* Finit extensions over std SysV */
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#define INIT_CMD_DEBUG 8 /* Toggle Finit debug */
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#define INIT_CMD_RELOAD 9 /* Reload *.conf in /etc/finit.d/ */
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#define INIT_CMD_START_SVC 10 /* START service */
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#define INIT_CMD_STOP_SVC 11
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#define INIT_CMD_RELOAD_SVC 12 /* SIGHUP service */
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#define INIT_CMD_RESTART_SVC 13 /* START service, clearing blocks */
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#define INIT_CMD_GET_PLUGINS 14 /* Fill data[] with loaded plugins */
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#define INIT_CMD_PLUGIN_DEPS 15 /* Fill data[] with plugin deps */
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#define INIT_CMD_GET_RUNLEVEL 16
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#define INIT_CMD_REBOOT 20
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#define INIT_CMD_HALT 21
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#define INIT_CMD_POWEROFF 22
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#define INIT_CMD_SUSPEND 23
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#define INIT_CMD_WDOG_HELLO 128 /* Watchdog register and hello */
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#define INIT_CMD_SVC_ITER 129
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#define INIT_CMD_SVC_QUERY 130
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#define INIT_CMD_SVC_FIND 131
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#define INIT_CMD_SVC_FIND_BYC 132
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#define INIT_CMD_SIGNAL 133
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#define INIT_CMD_NOTIFY_SOCKET 200 /* For readiness notification socket */
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#define INIT_CMD_NACK 254
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#define INIT_CMD_ACK 255
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/* Traditionally aligned on 384 bytes */
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struct init_request {
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int magic; /* Magic number */
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int cmd; /* What kind of request */
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int runlevel; /* Runlevel to change to */
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int sleeptime; /* Time between TERM and KILL */
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char data[368];
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};
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extern int runlevel;
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extern int cfglevel;
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extern int cmdlevel;
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extern int prevlevel;
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extern int debug;
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extern int rescue;
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extern int single;
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extern int bootstrap;
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extern int kerndebug;
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extern char *fstab;
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extern char *sdown;
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extern char *network;
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extern char *hostname;
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extern char *rcsd;
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extern char *runparts;
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extern char *osheading;
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extern uev_ctx_t *ctx;
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#endif /* FINIT_H_ */
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/**
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* Local Variables:
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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